I refilled my Brother Laser fax TN350 toner with a replacement toner kit. The toner light had been flashing. I installed a gear and filled the toner with the new product. Toner was coming out of the unit and blobs on the pages. I completely emptied the toner and refilled it with another container of toner. It is somewhat better but I still get lines down the middle now. I'm sure it was a case of overfilling.I refilled my Brother Laser fax TN350 toner with a replacement toner kit. The toner light had been flashing. I installed a gear and filled the toner with the new product. Toner was coming out of the unit and blobs on the pages. I completely emptied the toner and refilled it with another container of toner. It is somewhat better but I still get lines down the middle now. I'm sure it was a case of overfilling.

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do a quick check on 2 things.- Copy a document(put a printed page on document feeder and press Copy button) , has the Copy come ok? if copy is also blank that means toner/ink problem, needs to be replaced.

- check with your Fax receive Print settings. is any setting of econo mode/ contrast/brightness Off the track? If found any of such issue then Reset it or put it on average (middle).

Remove drum unit. in front of the toner cart. there is ether a green or blue slide lever. move the slide 10-15 times back and forth. make sher the slide is all the way over to one side. reinstall drum & make a copie. hope this works.

I first used the electrical tape trick and that worked for a while.
Then got the toner low message again. I then tried the *00 trick, which works as
follows:

1. lift lid and open front cover2. press clear/back.
"Replace Drum?" will appear on the screen.3. Press "*00" it will then read
accepted and the toner low error (End of Toner Life) should go away.4. close
it all up and your done.